CVE-2021-29487

Authentication bypass in Octobercms

Severity Score

7.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

octobercms in a CMS platform based on the Laravel PHP Framework. In affected versions of the october/system package an attacker can exploit this vulnerability to bypass authentication and takeover of and user account on an October CMS server. The vulnerability is exploitable by unauthenticated users via a specially crafted request. This only affects frontend users and the attacker must obtain a Laravel secret key for cookie encryption and signing in order to exploit this vulnerability. The issue has been patched in Build 472 and v1.1.5.

octobercms en una plataforma CMS basada en el framework PHP Laravel. En las versiones afectadas del paquete october/system un atacante puede explotar esta vulnerabilidad para omitir la autenticación y hacerse con una cuenta de usuario en un servidor de October CMS. La vulnerabilidad puede ser explotada por usuarios no autenticados por medio de una petición especialmente diseñada. Esto sólo afecta a usuarios del frontend y el atacante debe obtener una clave secreta de Laravel para el cifrado y la firma de cookies con el fin de explotar esta vulnerabilidad. El problema ha sido parcheado en el Build 472 y en la versión v1.1.5.

*Credits: N/A

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-03-30 CVE Reserved
2021-08-26 CVE Published
2024-05-11 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-287: Improper Authentication

CAPEC

References (3)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://github.com/octobercms/library/commit/016a297b1bec55d2e53bc889458ed2cb5c3e9374	2022-08-02
https://github.com/octobercms/library/commit/5bd1a28140b825baebe6becd4f7562299d3de3b9	2022-08-02
https://github.com/octobercms/october/security/advisories/GHSA-h76r-vgf3-j6w5	2022-08-02

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Octobercms Search vendor "Octobercms"		October Search vendor "Octobercms" for product "October"				>= 1.0.471 < 1.0.472 Search vendor "Octobercms" for product "October" and version " >= 1.0.471 < 1.0.472"		-		Affected
Octobercms Search vendor "Octobercms"		October Search vendor "Octobercms" for product "October"				>= 1.1.1 < 1.1.5 Search vendor "Octobercms" for product "October" and version " >= 1.1.1 < 1.1.5"		-		Affected